
public class Screen {

    public void displayMessageLine(String string) {

    	System.out.println(string);
	
    }

    public void displayMessage(String string) {
	
    	System.out.print(string);
	
    }
    
    public void displayDollarAmount(double amount) {
    	
    	System.out.printf("$%.2f", amount);
    }

}
